Bill Bejeck created KAFKA-6844: ---------------------------------- Summary: Race condition between StreamThread and GlobalStreamThread stopping Key: KAFKA-6844 URL: https://issues.apache.org/jira/browse/KAFKA-6844 Project: Kafka Issue Type: Bug Components: streams Affects Versions: 1.0.1, 1.1.0, 1.0.0 Reporter: Bill Bejeck Assignee: Bill Bejeck Fix For: 2.0.0
There can be a race condition where shut down is called on a StreamThread then shut down is called on a GlobalStreamThread, but the StreamThread can be delayed in shutting down, and the GlobalStreamThread can shutdown first. If the StreamThread tries to access a GlobalStateStore before closing the user can get an exception stating "..{{Store xxx is currently closed "}} Here's a redacted partial log file showing this process: {{2018-04-23 12:54:10 [INFO] [logger] DataExportTopology:86 - Closing streams}} {{2018-04-23 12:54:10 [INFO] [logger] KafkaStreams:346 - stream-client [redacted-info] State transition from RUNNING to PENDING_SHUTDOWN}} {{2018-04-23 12:54:10 [INFO] [logger] StreamThread:336 - stream-thread [redacted-info-StreamThread-1] Informed to shut down}} {{2018-04-23 12:54:10 [INFO] [logger] StreamThread:346 - stream-thread [redacted-info-StreamThread-1] State transition from RUNNING to PENDING_SHUTDOWN}} {{2018-04-23 12:54:10 [INFO] [logger] StreamThread:336 - stream-thread [redacted-info-StreamThread-2] Informed to shut down}} {{2018-04-23 12:54:10 [INFO] [logger] StreamThread:346 - stream-thread [redacted-info-StreamThread-2] State transition from RUNNING to PENDING_SHUTDOWN}} {{2018-04-23 12:54:10 [INFO] [logger] StreamThread:336 - stream-thread [redacted-info-StreamThread-3] Informed to shut down}} {{2018-04-23 12:54:10 [INFO] [logger] StreamThread:346 - stream-thread [redacted-info-StreamThread-3] State transition from RUNNING to PENDING_SHUTDOWN}} {{2018-04-23 12:54:10 [INFO] [logger] StreamThread:336 - stream-thread [redacted-info-StreamThread-4] Informed to shut down}} {{2018-04-23 12:54:10 [INFO] [logger] StreamThread:346 - stream-thread [redacted-info-StreamThread-4] State transition from RUNNING to PENDING_SHUTDOWN}} {{2018-04-23 12:54:10 [INFO] [logger] GlobalStreamThread:346 - global-stream-thread [redacted-info-GlobalStreamThread] State transition from RUNNING to PENDING_SHUTDOWN}} {{2018-04-23 12:54:10 [INFO] [logger] StreamThread:336 - stream-thread [redacted-info-StreamThread-4] Shutting down}} {{2018-04-23 12:54:10 [INFO] [logger] StreamThread:336 - stream-thread [redacted-info-StreamThread-1] Shutting down}} {{2018-04-23 12:54:10 [INFO] [logger] GlobalStreamThread:336 - global-stream-thread [redacted-info-GlobalStreamThread] Shutting down}} {{2018-04-23 12:54:10 [WARN] [logger] StatsDReporter:121 - KafkaStatsDReporter is disabled}} {{2018-04-23 12:54:10 [INFO] [logger] GlobalStreamThread:346 - global-stream-thread [redacted-info-GlobalStreamThread] State transition from PENDING_SHUTDOWN to DEAD}} {{2018-04-23 12:54:10 [INFO] [logger] GlobalStreamThread:336 - global-stream-thread [redacted-info-GlobalStreamThread] Shutdown complete}} {{2018-04-23 12:54:10 [INFO] [logger] StreamThread:336 - stream-thread [redacted-info-StreamThread-2] Shutting down}} -- This message was sent by Atlassian JIRA (v7.6.3#76005)